Thing is, the Jefferson males had access to Sally, and she was in no position to say no.

On the other hand, the chances of finding someone who had an upperclass diet, the right age, buried in the right time period, showing the right wounds, and showing the right skeletal defects just *happening* to have coincidentally been lobbed into the right area of a churchyard and who isn't who they think it is strike me as being vanishingly low.